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Siemens 3RN1022-1DW00 Thermistor Motor Protection Relay

Siemens 3RN1022-1DW00 Thermistor motor protection for 2 sensor circuits.

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ManufacturerSiemens

Part number3RN1022-1DW00

Type Thermistor motor protection

Sensor Circuits 2

Functions Warning and Switching-off

Contacts 1 NO + 1 CO

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Dual sensor circuit monitoring Warning and switching-off functions Wide voltage range (24-240V AC/DC) 1 NO + 1 CO contact Thermistor protection Phased-out product

Product description

The Siemens 3RN1022-1DW00 is a thermistor motor protection relay specifically designed for two sensor circuits, offering both warning and switching-off functions. This phased-out unit provides 1 normally open (NO) and 1 change-over (CO) contact, suitable for a wide voltage range of 24-240V AC/DC.

This relay is ideal for applications where monitoring two separate temperature sensor circuits is required for comprehensive motor protection. It provides advanced warning signals before shutdown and initiates a safe shut-off to prevent motor damage from overheating.

Stanlo Automation, a veteran-owned surplus distributor, offers hard-to-find industrial automation components. Secure essential parts like the Siemens 3RN1022-1DW00 to ensure the reliable operation and maintenance of your motor control systems.

Technical specifications

Type	Thermistor motor protection
Sensor Circuits	2
Functions	Warning and Switching-off
Contacts	1 NO + 1 CO
Voltage	24-240 V AC/DC
Status	Phased-out

Common applications

Motor protection

Industrial automation

Dual motor monitoring

Process control

Heavy machinery

Pump stations

Compatible systems

Designed for use with standard KTY or PTC thermistor temperature sensors in industrial motors.

Also known as

Siemens 3RN1022-1DW00 dual sensor relay 3RN10 series motor protector

Replaces / compatible with

The preferred successor for the Siemens 3RN1022-1DW00 is the 3RN2023-1DW30.

Technical note

Expert tip

Ensure that both sensor circuits are wired correctly and connected to the designated terminals to enable dual-circuit monitoring functionality.

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Frequently asked questions

What makes the Siemens 3RN1022-1DW00 suitable for monitoring two sensor circuits?

The Siemens 3RN1022-1DW00 is specifically designed to accept inputs from two separate thermistor sensor circuits. It provides distinct warning and shutdown outputs, allowing for differentiated monitoring and protection strategies for motors with multiple temperature monitoring points.